The M saloon will rival the sucessful BMW 5 series.
The Infiniti is not as good to drive or as well built as it's German rivals.
The interior is well-equipped with lots of technology, however some trim pieces do not stack up to German rivals.
The M saloon has three engines to choose from inculding a hybrid option.
The seven-speed gearbox is slow to react even in sport mode.
The most powerful engine of the range will accelerate to 62mph in 5.5 seconds.
Their is plenty of space of four adult sized passengers inside, although the rear centre seat is a little squashed due the transmission tunnel location.
The boot is 500-litres in the petrol engined car, but the hybrid version has only got 350-litres due to batteries taking up space.
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